Description is not correct on Mordekaisers ability
https://na.leagueoflegends.com/en/game-info/champions/mordekaiser
On Mace of Spades it says (+165% bonus Attack Damage) (+100% bonus Attack Damage) the first one being in red and the latter one being in green so I'm guessing it should say (+165% bonus Attack Damage) (+100% Ability Power)
The same thing goes for Siphon of Destruction where it says (+60% Attack Damage) (+60% Attack Damage)